* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; text-align: center; padding: 20px; background: #f5f5f5; }
header { margin-bottom: 30px; }
h1 { color: #333; margin-bottom: 10px; }
.features { display: flex; justify-content: center; gap: 20px; margin: 30px 0; flex-wrap: wrap; }
.feature { background: white; padding: 15px; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
button { background: #007bff; color: white; border: none; padding: 12px 24px; border-radius: 5px; cursor: pointer; font-size: 16px; }
button:hover { background: #0056b3; }
@media (max-width: 768px) { .features { flex-direction: column; align-items: center; } }